Method of generating steam



(No Model.)

A. POGGENDORFP & C. & F. BREDE.

METHOD OF GENERATING STEAM.

No. 406,467. Patented July 9, 1889.v

INVENTORS WITNESSES:

CARL BREDE, BY FRITZ BRZQ Arm/runs N. PEYERS. F'holo-Uthegnphnn Wi'dflngtun. DIC- UNITED STATES PATENT OFFICE.

AUGUST POGGENDORFF, CARL BREDE, AND FRITZ BREDE, OF ROCHESTER,

- NEW YORK.

METHOD OF GENERATING STEAM.

SPECIFICATION forming part of Letters Patent No. 406,467, dated July 9, 1889.

Application filed January 16, 1889. Serial No. 296,568. (No model.)

The accompanying drawing shows a central vertical section of an apparatus suitable for carrying out our invention, consisting-of a furnace, two boilers, and suitable connectingpipes.

The drawing only represents in mere outline certain forms of furnace and boiler apparatus; but any other forms may be used, since our invention does not depend upon any particular form of apparatus to be employed.

It consists in employing any suitable furnace and steam-boiler apparatus, and connections by which steam may be primarily generated by a fire and then conveyed through superheating apparatus, which may be located in the primary heating-furnace or elsewhere, and thence to submerged pipes within a water-boiler or steam-generator.

In the drawing, A indicates a furnace; B, a steam-boiler, provided with fiues C; D, another boiler, and E a steam-pipe leading from the first boiler above the water-line through a superheating nest of pipes E within the furnace to the coil E in the boiler D, thence out whenever desired through the pipe E F is a regulating-cock in the pipe E.

G indicates a pipe connecting the two boilers, provided with a cock X for drawing off their contents.

This process of course might be carried out by using a series of more than two boilers. More than one superheater might also be Steam for use in driving an engine, or for any other purpose, may be taken directly from the first boiler and also directly from the second boiler by pipes H H in the ordinary way.

We have found in practice that by the method above described the use of part of the steam generated in the first boiler, by being conserved and superheated and distributed in coils within another boiler or boilers, enables us to generate much more steam than can be generated in a single boiler heated by fire.

What we claim to be new is The method of generating steam herein described, which consists in first generating it in a water-receptacle heated by fire, conveying it thence to a superheater and superheating it, and conveying it thence into submerged pipes within another water-receptacle to generate steam there, the superheated steam being kept separate from the water in the second water-receptacle, substantially as set forth.

In testimony of all which we have hereunto subscribed our names.

AUGUST POGGENDORFR' CARL BREDE. FRITZ BREDE.

Witnesses:

R. F. Oseoon, H. C. THIRM. 

